Answers:
Thalassemia
Deficiency of hemoglobin due to defective gene; short life span for RBCs
Sickle cell disease
Defective gene leads to abnormally shaped RBCs n conditions of low oxygen
Aplastic Anemia
Damage to bone marrow due to toxic chemicals, radiation, and other factors
Hemolytic Anemia
Destruction of red blood cells; toxic chemicals are one cause
Pernicious Anemia
Increase in RBCs that are large and fragile; due to deficiency in vitamin B12
Step-by-step explanation:
Thalassemia
It is a blood disorder. It's known for its lower-than-normal levels of an oxygen-carrying protein with unusual lower amounts of red blood cells in the body.
Sickle cell disease
It impairs the function of hemoglobin as the atypical hemoglobin molecules known as hemoglobin S, that alters red blood cells into a sickle, or crescent, shape.
Aplastic anemia
It is a rare but major blood disorder due to inability of the bone marrow to produce adequate new blood cells needed by the body.
Hemolytic anemia
It is a result of anemia due to hemolysis, the unusual breakdown of red blood cells (RBCs), in the blood vessels (intravascular hemolysis) or spleen
Pernicious Anemia
It is a deduction in red blood cells due to inability of the body to take in adequate vitamin B12.